This 4-bay nitrous bottle holder is the perfect addition to any performance racing car. 080 aluminum Tread Brite materials and powder coated with a silver vein, it can securely hold up to four 10lb nitrous bottles, making it ideal for drag car, hot rods, and more. Designed for peak performance, this holder is compatible with units that require lb as their unit type.Plus, with a performance part in place, you can rely on it to deliver optimal results whenever you need it in your trailer. Dimensions 34" long x 11.5" tall x 8.5 wide. Use any wood screw or metal screw to. These units were American made in a small family business.